And john kelley



(NoModel.)

D. P. BABGOGK an J. KELLEY- LUBRIGA'IlOR.

170,577,374. Patented Feb. 16, 1897.

4V d0 2f 22.

UNITED STATES PATENT OFFICE.

DWIGHT F. BABOOOK, OF ST. LOUIS, MISSOURI, AND JOHN KELLEY, OF EAST ST. LOUIS, ILLINOIS.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 577,374, dated February 16, 1897.

Application led July 20, 1896. Serial No. 599,949. (No model.)

To all whom it Lmay concern:

Be it known that we, DWIGHT F. BABcooK,

of the city of St. Louis, State of Missouri, and

JOHN KELLEY, of the city of East St. Louis, St. Clair county, State of Illinois, have invented certain new and useful Improvements in Lubricators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

Our invention relates to lubricators; and it consists in the novel construction, combination, and arrangement of parts hereinafter shown, described, and claimed.

Figure 1 is avertical sectional View through the center of our improved lubricator. Fig. 2 is a horizontal sectional view on the line 2 2 of Fig. 1. Fig. 3 is a horizontal sectional view on the line 3 3 of Fig. l. Fig. 4 isa vertical transverse sectional view on the line 4 4 of Fig. 1.

In the construction of our improved sightfeed lubricator we make use of the vertical cylinders 5 and 6, which are connected together by the horizontal pipe 7. The upper end of the cylinder 5 is closed by the domeshaped cap 8, the lower end 9 of which is screw-seated in the upper end of said tube 5, and the annular flange 10 projects outwardly from said dome and engages the upper end of said cylinder 5 for the purpose of forming a tight joint.

The upper end of the cylinder 6 is closed by the cap 11, the lower end 12 of which is screw-seated upon the upper end of said cylinder 6, and an internal annular shoulder 13 is formed within the cap 11 and engages against the under side of said cylinder 6, thus forming a tight joint. A short tube 14 is vertically positioned in the upper end of the cap 11, and a screw-threaded bearing is formed in said tube 14, in which is mounted the valvestem 15, having the screw-threads 16 upon the center of said stem and engaging said bearing. A packing-ring 17 is placed around said valve-stem and against the upper end of the tube 14, and a cap 18 is screw-seated upon the upper end of said tube 14 and holds said packing-ring firmly in position, thus forming a tight joint between said valve-.stern and said tube.

Extending downwardly from the lower end of the cylinder 6 is a tube 19, to the lower end of which is attached the horizontal tube .20. A tube 2l projects horizontally from near the lower end of the cylinder 6 and has the screw-threaded outer end 22, designed to be tapped into the steam-pipe which leads from the boiler to the engine. An elbow 23 extends into the cylinder 6 from the inner end of the tube 21, and said elbow opens into the tube 7. A short vertical cylinder 24 is attached to the end of the tube 2O opposite the tube 19, and the horizontal wall 25 divides the tube 20, thus forming the two passages 26 and 27 through said tube.

Attached to the lower end of the tube 19 and communicating with the interior thereof is a drain-cock 28. Projecting downwardly from the -tube 2O and in vertical alinement with the tube 19 is a short internal screwthreaded section 29,' to which the feed-pipe leading from the oil-tank is to be attached. The .cylinder 24 has a plug 30 inserted in it from the lower end of said cylinder, and said plug has an annular ang'e 31, designed to engage the lower end of said cylinder to form a tight joint therewith.

Near the upper end of the plug 30 are screwthreads 32, designed to engage the screwthreads 33 upon the inner face of said cylinder 24. A small tube 34 extends upwardly from the center of the plug 30, and the Valvestem 35 is screw-seated in the lower end ofsaid plug and in vertical alinernent with the bore of the tube 34, and the conical Valve 36 upon the upper end of the valve-stem 35 engages within the lower end of the tube 34, as required to open and close the passage through said tube. A packing-ring 37 is placed upon the valve-stem 35 and engages the lower end of the plug 30, and a cap 38 is screw-seated upon the lower end of said plug 30 and holds said packing-ring securely in position, thus forminga tight joint around the valve-stem 35.

A handle 39 is attached to the lower end of the valve-stem 35 for operating the same. A

series of horizontal apertures 40L are made through the wall of the plug 30 and in alineinent with the passage 27 in the tube 20. A glass tube 40 is placed with its lower end in the upper end of the cylinder 24 and its up- IOO per end in the lower end of the cylinder 5. A packing-ring 41 is placed around the lower end of said tube 40 and against the upper end of the cylinder 24, and a cap 42 is placed around said tube 40 and is screw-seated upon the upper end of said cylinder 24, thus holding the packing-ring 4l securely in position.

A packing-ring 43 is placed around the upper end of the tube 40 and against the lower end of the cylinder 5, and a cap 44 is placed around the upper end of the tube 40 and is screw-seated upon the lower end of the cylinder 5, thus holding the packing-ring securely in position.

A funnel-shaped valve-seat 45 is formed in the elbow 23, and a conical valve 4G is attached to the lower end of the valve-stein 15 and engages said valve-seat 45. A handle 47 is attached to the upper end of the valvestein 15 for manually operating the same.

In the practical operation of our improved lubricator the screw-threaded end 22 of the tube 21 is tapped into the steam-pipe which leads from the boiler to the engine, and the feed-pipe leading from the oil-tank is tapped into the tubular section 29. Steam coming from the steam-pipe will pass inwardly through the tube 21, upwardly through the elbow 23, and into the space within the caps 8 and 11, where said steam will be condensed, and the water formed by such condensation will pass downwardly and till the tubes 19 and 40. The pressure of the steam in the oiltank will cause the oil to pass through the passage 27 in the tube 20, thence through the apertures 40 in the plug 30, thence upwardly through the tube 34 and' into the water within the tube 40, and said oil will gather on top of said water.

When the water rises within the tube 40 to a height above the lower side of the tube 7, the oil upon said water will pass through said tube 7 and downwardly through the elbow 23, thence through the pipe 21, and into the steam-pipe. The passage of the oil is controlled by manipulating the valve 36 by means of the handle 39, and the passage of the oil upwardly through the water in the tube 40 is visible through the glass of which said tube is formed. After an equilibrium has been established within the lubricator and the tube 40 is filled with water, steam passing in through the tube 21 and the elbow 23 will be condensed in the cap 11 and will pass downwardly on the inner walls of said cap to the cylinder G and through the vpassages 48 and 49, formed between the elbow 23 and the inner face of the cylinder 6, and thence into the tube 19. As the water from condensation rises in the passages 48 and 49 it will also rise in the tube 40 and overflow through the tube 7 into the elbow 23. The oil being the lightest, and lloating upon the water, will be the first to pass through the tube 7. When it is desired to drain the lubricator, the cock 28 may be opened.

The elbow 23 forms' the wall 50 opposite the passage through the tube 7, and the water formed by the condensation oi the steam in the cap 11 will pass downwardlybetween the wall 50 and the inner face of the cylinder G and cannot get back into the steampipe through the tube 21 except by passing downwardly through the tube 19 and upwardly through the glass tube 40, and so it is obvious that as fast as the water passes downwardly through the openings 48and 49 it will rise in the tube 40 and overflow from said tube through the opening in the tube 7, and thence through the elbow 23 and into the steam-pipe through the tube 21. The pressure upon the oil passing in through the passage 27 is the same as the pressure upon the steam in the tube 21, so that steam-pressure within the lubricator is neutralized and the low of oil and water toward the steam pipe, to which the tube 2l is attached, is established and maintained by the force of gravity and by capillary force. Thus we have in effeet a U-shaped column of water, the receiving end of which is higher than the discharge end, and means of injecting oil into the discharge end of said column.

Our improved sight-feed lubricator possesses many advantages over those which have heretofore been in use, which will readily suggest themselves to persons in need of such devices.

1. In a lubricator, two cylinders arranged in vertical parallel positions, a pipe connecting said cylinders, caps closing the upper ends of said cylinders, a pipe connected to one of said cylinders and designed to be tapped into the steam-pipe, an elbow positioned inside of said last-mentioned cylinder and connecting the inner end of said last-mentioned pipe with the end of said first-mentioned pipe, the upper end of said elbow being above the end of said iirst-mentioned pipe and there being passages outside of said elbow and inside of said cylinder, a tube connecting with said passages and projecting downwardly from said cylinder, a sighttube projecting downwardly from the other one of said cylinders, a tube having a passage connecting the lower ends of the last two mentioned tubes, and also having a separate passage for injecting oil into said sighttube,substantially as specified.

2. In a lubricator, an inner and an outer cylinder mounted in vertical parallel positions, a pipe connecting the centers of said cylinders, a tube projecting from the lower end of the inner cylinder and designed to be tapped into the steam-pipe, an elbow in said inner cylinder and connecting the inner end of said tube with the end of said pipe, the upper end of said elbow being above said pipe and there bein g passages outside of said elbow and inside of said cylinder, a tube projecting downwardly from said inner cylinder, a glass tube projecting downwardly from said outer cylinder, a tube having a passage leading from the interior of said downwardly-projecting ICO IOS

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tube to the interior of said glass tube, and also having a separate passage lfor injecting oil into said glass tube, substantially as specified.

3. In a lubricator, an inner cylinder and an outer cylinder mounted in parallel vertical positions, a pipe connecting said cylinders, a tube connecting the lower end of said inner cylinder with the steam-pipe7 an elbow within said inner cylinder and connecting the inner end of said tube with said pipe,- the upper end of said elbow being above the end of said pipe and there being passages outside of said elbow and inside of said cylinder, a tube having a passage connecting the lower end of said inner cylinder and the lower end of said outer cylinder, and also having a separate passage for injecting oil into said outer cylinder, substantially as specified.

In testimony whereof we affix our signatures in presence of two witnesses.

DWIGHT F. BABCOCK. JOHN KELLEY. Witnesses:

MAUD GRIFFIN, S. G. WELLS. 

